ScienceJohn Michels (Journalist) 1951 |
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Стр. 146
... lead square became too thin for convenient han- dling it was backed by a lead sheet cut to the same size , and the expansion and backing with lead sheets continued until the square was as wide as the rolling mill . A sheet of " No ...
... lead square became too thin for convenient han- dling it was backed by a lead sheet cut to the same size , and the expansion and backing with lead sheets continued until the square was as wide as the rolling mill . A sheet of " No ...
Стр. 147
... lead and film , but many have shown sharply defined edges of the radioactive area and give a basis for predicting that an improved me- chanical magnification technique may eventually yield radioautographs with very high resolving power ...
... lead and film , but many have shown sharply defined edges of the radioactive area and give a basis for predicting that an improved me- chanical magnification technique may eventually yield radioautographs with very high resolving power ...
Стр. 148
... lead from the shop and taking an oath of secrecy concerning the one - time presence of such a base metal there ) , it was found possible to take a lead - embedded tissue section 3 mm in diameter , roll it out into an ellipse 3 mm × 250 ...
... lead from the shop and taking an oath of secrecy concerning the one - time presence of such a base metal there ) , it was found possible to take a lead - embedded tissue section 3 mm in diameter , roll it out into an ellipse 3 mm × 250 ...
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AAAS absorption acetone acid activity American amino acids Ammonoidea animals Annual Antabuse applied appointed Association autoxidation awarded Bentley Glass Biochem Biol biological blood Cancer cells Chem chemical Chemistry Chicago chlorophyll chloroprocaine clinical colchicine College concentration cortisone culture density Department diet director Division effect Engineering enzyme epidermis erythrocytes experimental experiments field Fraction Geology growth Health Ibid inhibition injection Institute investigation Laboratory liver material measured mechanism Medical Medicine ment metabolism method muscle National nuclear nuclei observed obtained organic oxidation penicillin physical Physiol physiology plant plasma potassium present procaine production professor rats reported samples School Science scientific scientists Sept serum Society soil solution substances Table technique temperature thiouracil tion tissue tryptophan tube tumors Univ University University of Minnesota uracil uraninite vitamin B12 y-globulin York